Granted Patent
Utility
US 5,647,409 · App. 08/416,101
On-site syringe filling apparatus for viscoelastic materials, and corresponding method for on-site syringe filling
Inventors:
F. Richard Christ, Erick F. Fischer, Kenneth E. Kadziauskas
Patented Case
View Patent ↗
Granted: Jul 15, 1997
Filed: Apr 4, 1995
Inventors
F. Richard Christ
Erick F. Fischer
Kenneth E. Kadziauskas
Assignee (at issue)
Allergan, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.